diff --git a/crates/rust-analyzer/src/caps.rs b/crates/rust-analyzer/src/caps.rs
index 680415caca2..110c9a44297 100644
--- a/crates/rust-analyzer/src/caps.rs
+++ b/crates/rust-analyzer/src/caps.rs
@@ -17,10 +17,10 @@ pub fn server_capabilities() -> ServerCapabilities {
     ServerCapabilities {
         text_document_sync: Some(TextDocumentSyncCapability::Options(TextDocumentSyncOptions {
             open_close: Some(true),
-            change: Some(if env::var("RA_PROFILE").is_ok() {
-                TextDocumentSyncKind::Incremental
-            } else {
+            change: Some(if env::var("RA_NO_INCREMENTAL_SYNC").is_ok() {
                 TextDocumentSyncKind::Full
+            } else {
+                TextDocumentSyncKind::Incremental
             }),
             will_save: None,
             will_save_wait_until: None,
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index 401fae75565..b163ea848f7 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -676,13 +676,13 @@ fn apply_document_changes(
     // remember the last valid line in the index and only rebuild it if needed.
     enum IndexValid {
         All,
-        UpToLine(u64),
+        UpToLineExclusive(u64),
     }
 
     impl IndexValid {
         fn covers(&self, line: u64) -> bool {
             match *self {
-                IndexValid::UpToLine(to) => to >= line,
+                IndexValid::UpToLineExclusive(to) => to > line,
                 _ => true,
             }
         }
@@ -692,10 +692,10 @@ fn covers(&self, line: u64) -> bool {
     for change in content_changes {
         match change.range {
             Some(range) => {
-                if !index_valid.covers(range.start.line) {
+                if !index_valid.covers(range.end.line) {
                     line_index = Cow::Owned(LineIndex::new(&old_text));
                 }
-                index_valid = IndexValid::UpToLine(range.start.line);
+                index_valid = IndexValid::UpToLineExclusive(range.start.line);
                 let range = range.conv_with(&line_index);
                 let mut text = old_text.to_owned();
                 match std::panic::catch_unwind(move || {
@@ -713,7 +713,7 @@ fn covers(&self, line: u64) -> bool {
             }
             None => {
                 *old_text = change.text;
-                index_valid = IndexValid::UpToLine(0);
+                index_valid = IndexValid::UpToLineExclusive(0);
             }
         }
     }
diff --git a/docs/user/readme.adoc b/docs/user/readme.adoc
index 2c0a96a059d..69f5b13d6b8 100644
--- a/docs/user/readme.adoc
+++ b/docs/user/readme.adoc
@@ -57,7 +57,11 @@ To disable this notification put the following to `settings.json`
 ----
 ====
 
-The server binary is stored in `~/.config/Code/User/globalStorage/matklad.rust-analyzer` (Linux) or in `~/.Library/Application Support/Code/User/globalStorage/matklad.rust-analyzer` (macOS) or in `%APPDATA%\Code\User\globalStorage` (Windows).
+The server binary is stored in:
+
+* Linux: `~/.config/Code/User/globalStorage/matklad.rust-analyzer`
+* macOS: `~/Library/Application Support/Code/User/globalStorage/matklad.rust-analyzer`
+* Windows: `%APPDATA%\Code\User\globalStorage`
 
 Note that we only support the latest version of VS Code.